<?php
class DuckDecker implements DuckInterface {
    protected $duck;
    protected $quckCount = 0;
    public function __construct(DuckInterface $duck)
    {
        $this->duck = $duck;
    }

    public function quick()
    {
        $this->duck->quick();
        $this->quckCount++;
    }

    public function getQuick()
    {
        return $this->quckCount;
    }
}